Duo-Loop Wristband by Colantotte Trion:Z new for 2014. The Duo-Loop Wristband combines a vibrant new look with the unique magnetic technology found in all Colantotte Trion:Z Products. The double silicone bands and exciting new color combinations create an energetic new look with a comfortable water proof design. The Duo-Loop Wristband contains two, 1,000 Gauss magnets arranged in our unique Alternating North-South Polarity orientation to create a larger magnetic field flow. The Duo-Loop wristband is available in 3 sizes and in 6 different color combinations including: Black/Gray, Red/Black, Red/White, Orange/Black, Green/Black, and Blue/Black.